Resin soap.



No. 867,963 PATENTED OCT. 15,1907. E. FISGHBR. RESIN SOAP.

APPLICATION nun MAY 31, 1904.

wiz'nesses barren STATESPAZIENT orrrcn.

ERNST FISCHER,- OF DRE SDEN, GERMANY, ASSIGNOR TO THE ARABOLMANUFACTURING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

RESIN SOAP.

Specification of Letters Patent.-

Patented Oct. 1 5, 1907.

Application filed May 31, 1904. Serial No. 210,532-

To all whom "it may concern:

Be it known that I, Enns'r Flscnsn, a subject of the Emperor of Germany,and a resident of Dresden, Gern1any,have invented certain new and usefulImprovements in the Manufacture of Resin Soap; and I do hereby declarethe following to be a full and clear description. of mg. invention, suchas will enable others skilled in the art to which it appertains to makeand use the same.

My invention has reference to improvements in the manufacture of resinsize and particularly to aha-rd and brittle size which under blows of ahammer breaks like crude resin and which contains free resin.

For this purpose my invention consists essentially in mixing therequired quantities of resin and soda (sodium carbonate) with theminimum amount of water; boiling this mixture within a suitable vesseland keeping substantially constant the said amount of water bycondensing the vapors of the same within said vessel and directlyreturning it; permittingthe carbonic acid evolved to simultaneouslyescape; and finally after the complete escape of the carbonic acidremoving the water. I I

In carrying out my invention I employ a suitable apparatus such as theapparatus shown in the'accompanying drawing, which represents asectional elevation.

The receptacle 11, preferably ofcylindrical shape, is divided by meansof. the false bottom I) into chambers h and i, of which the lower one his provided with a suitable heating arrangement, for instance, a pipecoil The upper chamber i is provided with a cover 0, which in turn isprovided with suitable cooling means, for instance a water jacket g.Both chamber h and i are interconnnunicating below by pipes or wells d.In

the cover c of the. receptacle a is provided an escape opening e for thecarbonic acid generated during the boiling process. To prevent thevapors from being carried along by the carbonic acid I preferablyprovide a deflector lc underneath this escape opening a. To enhance thecooling action of thejackcted cover, I m ay provide the inner wall withcorrugations, as shown, or with air or water cooled ribs or channels.

My process is as follows: The mixture of resin, soda and as small apercentage of water as possible is filled into the lower chamber h andboiled. The amount of soda utilized depends upon the amount of freeresin desired in the finishedproduct. I prefer to obtain at least 30% offree resin and for this purpose use for 100 lbs. of resin, 11 lbs. ofsoda ash containing 58 of soda. The carbonic acid generated during theboilingperiod escapes, as shown by foaming of the mixture. The risingfroth passes through the central opening 1 in the inverted cup-shapedfalse bottom I) and collects in the lowest part of the chamber i, fromwhere it is drained off through the pipes d back again into the lowerchamber. The freed carbonic acid escapes through the opening a. Thewater vapors rising during the boiling process are condensed on thecooled cover 0 and fall back as water into the mixture, with the resultthat the mixture during the boiling period has a sufiicient andsubstantially constant percentage of water to bring about a homogeneouscombination. After the boiling period has been terminated and themixture is properly combined which is shown by cessation of the foaming,the vapors still generating are then allowed to escape, as by liftingoff the cover. A hard and brittle resin size is thus obtained,containing over 30 76 of free resin and which under the blows of ahammer will break like crude resin. Owing to this latter property it maybe broken into small pieces and therefore can be more readily andquickly dissolved, as the small pieces into which it is broken offer arelatively larger surface for the dissolving action of the water. Also,in the shipping of the size a saving in freight charges is effected inthat the water content of the liquid sizes is absent. The

packing and general handling of the same is also more convenient andcheaper, and the size keeps better than the ordinary soft resin size,from which water is likely to separate when it freezes.

What I claim is:

1. As a new article of manufacture; a hard and brittle resin sizecontaining an appreciable excess of free resin; and no appreciableamount of uncombincd soda.

2. As a new article of manufacture, a hard and brittle resin sizecontaining over 30% of free resin. I

In testimony, that I claim the foregoing as my invention, I .have'signedmy name in presence of two subscribing witnesses. Y

nnns'r irlsennn.

Witnesses F11. II. 'lnLMnnC, PAUL Alums.

